WebCore/StyleBase.h

   1 /*
   2  * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
   3  * Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
   4  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmial.com)
   5  * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public License
  18  * along with this library; see the file COPYING.LIB.  If not, write to
  19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  * Boston, MA 02110-1301, USA.
  21  */
  22
  23 #ifndef StyleBase_h
  24 #define StyleBase_h
  25
  26 #include <wtf/RefCounted.h>
  27
  28 namespace WebCore {
  29
  30     class String;
  31     class StyleSheet;
  32     class KURL;
  33
  34     // Base class for most CSS DOM objects.
  35
  36     // FIXME: We don't need these to all share one base class.
  37     // Refactor so they don't any more.
  38
  39     class StyleBase : public RefCounted<StyleBase> {
  40     public:
  41         virtual ~StyleBase() { }
  42
  43         StyleBase* parent() const { return m_parent; }
  44         void setParent(StyleBase* parent) { m_parent = parent; }
  45
  46         // returns the url of the style sheet this object belongs to
  47         KURL baseURL() const;
  48
  49         virtual bool isCSSStyleSheet() const { return false; }
  50         virtual bool isCharsetRule() { return false; }
  51         virtual bool isFontFaceRule() { return false; }
  52         virtual bool isImportRule() { return false; }
  53         virtual bool isKeyframeRule() { return false; }
  54         virtual bool isKeyframesRule() { return false; }
  55         virtual bool isMediaRule() { return false; }
  56         virtual bool isVariablesRule() { return false; }
  57
  58         virtual bool isRule() { return false; }
  59         virtual bool isStyleRule() { return false; }
  60         virtual bool isStyleSheet() const { return false; }
  61         virtual bool isXSLStyleSheet() const { return false; }
  62
  63         virtual bool isMutableStyleDeclaration() const { return false; }
  64
  65         virtual String cssText() const;
  66
  67         virtual void checkLoaded();
  68
  69         bool useStrictParsing() const { return !m_parent || m_parent->useStrictParsing(); }
  70
  71         virtual void insertedIntoParent() { }
  72
  73         StyleSheet* stylesheet();
  74
  75     protected:
  76         StyleBase(StyleBase* parent)
  77             : m_parent(parent)
  78         {
  79         }
  80
  81     private:
  82         StyleBase* m_parent;
  83     };
  84 }
  85
  86 #endif